Description
Specifications Table
| Product Name | Endo Agar Base |
|---|---|
| Quantity/Pack Size | 500 gm |
| Form | Powder |
| Grade | Microbiology Grade |
| Application | Isolation and differentiation of coliforms |
Product Description
Endo Agar Base is a specialized microbiological medium designed for the selective isolation and differentiation of coliform bacteria, particularly Escherichia coli and Enterobacter aerogenes. This medium is widely used in water testing, food microbiology, and environmental monitoring due to its ability to inhibit gram-positive bacteria while promoting the growth of lactose-fermenting coliforms.
The unique formulation of Endo Agar Base contains lactose as the primary carbohydrate source, along with basic fuchsin and sodium sulfite, which react to produce a characteristic red color in colonies of lactose fermenters. Non-lactose fermenters appear as colorless or pale colonies, making it easy to distinguish between different bacterial types.
Whether you’re a student conducting lab experiments, a researcher analyzing water samples, or an educator demonstrating bacterial isolation techniques, this medium provides reliable results. The 500g pack size ensures you have an ample supply for multiple experiments without frequent reordering.
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Key Applications
Endo Agar Base is essential for various microbiological applications, including:
Water Quality Testing: Used in laboratories to detect coliform contamination in drinking water, wastewater, and environmental samples as per standard protocols.
Food Safety Analysis: Helps identify potential bacterial contamination in dairy products, processed foods, and raw materials during quality control checks.
Educational Laboratories: A staple in microbiology courses for teaching bacterial isolation and differential staining techniques to students.
Research Studies: Employed in studies involving bacterial ecology, antibiotic resistance, and microbial diversity in various environments.
Preparation and Usage
To prepare Endo Agar Base, follow these simple steps:
1. Suspend 31.5 grams of the powder in 1 liter of distilled water.
2. Heat to boiling while stirring to dissolve completely.
3. Autoclave at 121°C for 15 minutes.
4. Cool to 45-50°C and pour into sterile Petri dishes.
5. Allow the medium to solidify before use.
For best results, store the prepared plates at 2-8°C and use within 30 days. The medium should appear light pink to red in color when properly prepared.
Why This Medium Matters
In microbiology, accurate identification of coliform bacteria is crucial for public health and safety. Endo Agar Base provides a simple yet effective method for this purpose. The distinct colony morphology it produces allows for quick visual differentiation between E. coli (which typically shows a metallic sheen) and other coliforms.
This medium is particularly valuable in regions where waterborne diseases are a concern, as it helps in the early detection of potential contamination sources. For researchers working on antibiotic resistance studies, it serves as a reliable tool for isolating specific bacterial strains.
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Safety Information
While Endo Agar Base is generally safe to handle, follow standard laboratory practices:
– Wear appropriate personal protective equipment (lab coat, gloves, goggles).
– Avoid inhalation of powder during preparation.
– Dispose of used media according to biohazard waste protocols.
– Store in a cool, dry place away from direct sunlight.
FAQs
What is the shelf life of Endo Agar Base?
The powder has a shelf life of 3 years when stored properly in its original packaging at room temperature. Prepared plates should be used within 30 days when refrigerated.
Can I use Endo Agar Base for detecting E. coli specifically?
Yes, while it detects all coliforms, E. coli typically produces colonies with a characteristic metallic sheen on this medium, making it distinguishable from other coliforms.
What’s the difference between Endo Agar Base and MacConkey Agar?
Both are selective media for coliforms, but Endo Agar contains basic fuchsin which gives a more distinct color reaction, while MacConkey uses neutral red and crystal violet for different colony appearances.
How much Endo Agar Base do I need for 100 plates?
For standard 90mm Petri dishes, you’ll need about 15-20ml of medium per plate. The 500g pack can prepare approximately 16 liters of medium, enough for about 800 plates.
Is this product suitable for clinical diagnostics?
While it can be used in clinical labs, it’s primarily designed for environmental and food testing. For clinical diagnostics, consult with your institution’s standard protocols and consider specialized media.
